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| 2 | <!DOCTYPE appendix PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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| 7 |
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| 8 | <appendix id="appendixd-common" xreflabel="Appendix D">
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| 9 | <?dbhtml dir="appendixd"?>
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| 10 | <?dbhtml filename="rationale-common.html"?>
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| 11 |
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| 12 | <title>Package Rationale</title>
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| 13 |
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| 14 | <para>CLFS includes many packages, a number of which might not necessarily
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| 15 | be required for a "minimal" system, but still considered very useful. The
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| 16 | purpose of this page is to list the reasoning for each package's inclusion
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| 17 | in the book.</para>
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| 18 |
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| 19 | <itemizedlist>
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| 20 |
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| 21 | <listitem>
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| 22 | <para>Autoconf</para>
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| 23 | <para>The Autoconf package contains programs for producing shell scripts
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| 24 | that can automatically configure source code. This is useful for software
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| 25 | developers, as well as anyone who wants to install packages that don't
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| 26 | come with a configure script, such as some of the packages in CBLFS.</para>
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| 27 | </listitem>
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| 28 |
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| 29 | <listitem>
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| 30 | <para>Automake</para>
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| 31 | <para>The Automake package contains programs for generating Makefiles
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| 32 | for use with Autoconf. This can be useful to software developers.</para>
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| 33 | </listitem>
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| 34 |
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| 35 | <listitem>
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| 36 | <para>Bash</para>
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| 37 | <para>This package contains the Bourne-Again SHell. A shell is an
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| 38 | important component of a Linux system, as there must be some way of
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| 39 | allowing the users to enter commands.</para>
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| 40 | </listitem>
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| 41 |
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| 42 | <listitem>
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| 43 | <para>Bc</para>
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| 44 | <para>This package contains a precision calculator. The Linux kernel
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| 45 | uses Bc to render the timeconst header.</para>
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| 46 | </listitem>
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| 47 |
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| 48 |
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| 49 | <listitem>
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| 50 | <para>Binutils</para>
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| 51 | <para>This package contains programs for handling object files. The
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| 52 | programs in this package are needed for compiling most of the packages
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| 53 | in CLFS.</para>
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| 54 | </listitem>
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| 55 |
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| 56 | <listitem>
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| 57 | <para>Bison</para>
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| 58 | <para>This package contains programs that are required by several
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| 59 | packages in CLFS.</para>
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| 60 | </listitem>
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| 61 |
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| 62 | <listitem>
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| 63 | <para>Bzip2</para>
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| 64 | <para>The programs in this package are useful for compressing files to
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| 65 | reduce size. They are also needed to uncompress tarballs for many
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| 66 | CLFS packages.</para>
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| 67 | </listitem>
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| 68 |
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| 69 | <listitem>
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| 70 | <para>CLFS-Bootscripts</para>
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| 71 | <para>This package contains a number of scripts that run at boottime,
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| 72 | performing essential tasks such as mounting/checking filesystems and
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| 73 | starting the network interface.</para>
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| 74 | </listitem>
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| 75 |
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| 76 | <listitem>
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| 77 | <para>Check</para>
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| 78 | <para>This package contains a test harness for other programs. It is
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| 79 | used for some packages' test suites.</para>
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| 80 | </listitem>
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| 81 |
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| 82 | <listitem>
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| 83 | <para>CLooG</para>
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| 84 | <para>This package is used by GCC to enable its Graphite loop generation
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| 85 | code.</para>
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| 86 | </listitem>
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| 87 |
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| 88 | <listitem>
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| 89 | <para>Coreutils</para>
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| 90 | <para>This package contains many basic command-line file-management
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| 91 | tools, required for installation of every package in CLFS.</para>
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| 92 | </listitem>
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| 93 |
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| 94 | <listitem>
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| 95 | <para>DejaGNU</para>
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| 96 | <para>This package is needed for the test suites of several packages,
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| 97 | especially GCC and Binutils.</para>
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| 98 | </listitem>
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| 99 |
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| 100 | <listitem>
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| 101 | <para>DHCPCD</para>
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| 102 | <para>This package allows for automatic configuration of network
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| 103 | interfaces from a DHCP server. It (or some other package providing a
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| 104 | DHCP client is needed to connect to a DHCP server.</para>
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| 105 | </listitem>
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| 106 |
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| 107 | <listitem>
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| 108 | <para>Diffutils</para>
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| 109 | <para>This package contains programs to compare files, and can also
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| 110 | be used to create patches. It is required by the installation procedures
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| 111 | of many CLFS packages, and used by many packages' test suites.</para>
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| 112 | </listitem>
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| 113 |
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| 114 | <listitem>
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| 115 | <para>Eudev</para>
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| 116 | <para>This is a package that allows for dynamic creation of device nodes.
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| 117 | It is a fork of Udev, which is now part of Systemd. It is still
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| 118 | used for the "Boot" method in the temp-system, as Systemd is not needed
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| 119 | there.</para>
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| 120 | </listitem>
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| 121 |
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| 122 | <listitem>
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| 123 | <para>Expect</para>
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| 124 | <para>This package is needed for the test suites for several packages.</para>
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| 125 | </listitem>
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| 126 |
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| 127 | <listitem>
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| 128 | <para>E2fsprogs</para>
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| 129 | <para>The programs in this package are used for the creation and
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| 130 | maintenance of ext2/3/4 filesystems.</para>
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| 131 | </listitem>
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| 132 |
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| 133 | <listitem>
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| 134 | <para>File</para>
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| 135 | <para>This package contains a program that determines the type of
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| 136 | a given file. It is needed by some CLFS packages.</para>
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| 137 | </listitem>
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| 138 |
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| 139 | <listitem>
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| 140 | <para>Findutils</para>
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| 141 | <para>This package contains programs for finding files based on certain
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| 142 | criteria, and optionally performing commands on them. These programs
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| 143 | are used by the installation procedures of many CLFS packages.</para>
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| 144 | </listitem>
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| 145 |
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| 146 | <listitem>
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| 147 | <para>Flex</para>
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| 148 | <para>This package contains a tool for generating text scanners. It is
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| 149 | used by multiple packages in CLFS</para>
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| 150 | </listitem>
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| 151 |
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| 152 | <listitem>
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| 153 | <para>Gawk</para>
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| 154 | <para>This package contains programs for manipulating text files, using
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| 155 | the AWK language. It is used by the installation procedures of many
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| 156 | packages in CLFS.</para>
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| 157 | </listitem>
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| 158 |
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| 159 | <listitem>
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| 160 | <para>Gcc</para>
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| 161 | <para>This package contains a C compiler, which is required to compile
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| 162 | most of the packages in CLFS.</para>
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| 163 | </listitem>
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| 164 |
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| 165 | <listitem>
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| 166 | <para>GDBM</para>
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| 167 | <para>This package contains the GNU Database Manager library. Man-DB
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| 168 | requires either GDBM or Berkeley DB, though it prefers GDBM.</para>
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| 169 | </listitem>
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| 170 |
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| 171 | <listitem>
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| 172 | <para>Gettext</para>
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| 173 | <para>A tool that allows programmers to easily implement i18n
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| 174 | (internationalization) in their programs. It is a required dependency
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| 175 | for a number of packages</para>
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| 176 | </listitem>
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| 177 |
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| 178 | <listitem>
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| 179 | <para>Glibc</para>
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| 180 | <para>Any dynamically-linked C program (nearly every package in CLFS
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| 181 | has these) needs a C library to compile and run.</para>
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| 182 | </listitem>
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| 183 |
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| 184 | <listitem>
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| 185 | <para>GMP</para>
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| 186 | <para>This package is required by GCC.</para>
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| 187 | </listitem>
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| 188 |
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| 189 | <listitem>
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| 190 | <para>Grep</para>
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| 191 | <para>This package contains programs for searching for text in files.
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| 192 | These programs are required by many packages in CLFS.</para>
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| 193 | </listitem>
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| 194 |
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| 195 | <listitem>
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| 196 | <para>Groff</para>
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| 197 | <para>This package is required by Man-DB.</para>
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| 198 | </listitem>
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| 199 |
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| 200 | <listitem>
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| 201 | <para>Gzip</para>
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| 202 | <para>Useful for compressing files to reduce size. It is also needed to
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| 203 | uncompress tarballs for many CLFS packages</para>
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| 204 | </listitem>
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| 205 |
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| 206 | <listitem>
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| 207 | <para>Iana-Etc</para>
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| 208 | <para>This package provides the <filename>/etc/services</filename> and
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| 209 | <filename>/etc/protocols</filename> files. These files map port names to
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| 210 | port numbers as well as protocol names to their corresponding numbers.
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| 211 | These files are essential for many network based programs to work properly.</para>
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| 212 | </listitem>
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| 213 |
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| 214 | <listitem>
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| 215 | <para>IProute2</para>
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| 216 | <para>This package contains programs for administering network
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| 217 | interfaces.</para>
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| 218 | </listitem>
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| 219 |
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| 220 | <listitem>
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| 221 | <para>IPutils</para>
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| 222 | <para>This package contains several basic network-management tools.</para>
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| 223 | </listitem>
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| 224 |
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| 225 | <listitem>
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| 226 | <para>ISL</para>
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| 227 | <para>This package is required by CLooG.</para>
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| 228 | </listitem>
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| 229 |
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| 230 | <listitem>
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| 231 | <para>Kbd</para>
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| 232 | <para>Contains keytable files and keyboard utilities compatible with the
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| 233 | Linux kernel. These can be used to change the display font and keyboard
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| 234 | layout.</para>
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| 235 | </listitem>
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| 236 |
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| 237 | <listitem>
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| 238 | <para>Kmod</para>
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| 239 | <para>This package contains programs that assist in loading an unloading
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| 240 | kernel modules.</para>
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| 241 | </listitem>
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| 242 |
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| 243 | <listitem>
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| 244 | <para>Less</para>
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| 245 | <para>A program that lets you view text files one page at a time.
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| 246 | It is also used by Man-DB for displaying manpages.</para>
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| 247 | </listitem>
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| 248 |
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| 249 | <listitem>
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| 250 | <para>Libee</para>
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| 251 | <para>This library is required by Rsyslog.</para>
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| 252 | </listitem>
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| 253 |
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| 254 | <listitem>
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| 255 | <para>Libestr</para>
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| 256 | <para>This library is required by Rsyslog.</para>
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| 257 | </listitem>
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| 258 |
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| 259 | <listitem>
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| 260 | <para>Libpipeline</para>
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| 261 | <para>The Libpipeline package contains a library for manipulating
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| 262 | pipelines of subprocesses in a flexible and convenient way. It is
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| 263 | required by the Man-DB package.</para>
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| 264 | </listitem>
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| 265 |
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| 266 | <listitem>
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| 267 | <para>Libtool</para>
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| 268 | <para>The Libtool package contains the GNU generic library support
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| 269 | script. It is used by some CLFS packages.</para>
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| 270 | </listitem>
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| 271 |
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| 272 | <listitem>
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| 273 | <para>Linux Headers</para>
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| 274 | <para>This package consists of santized headers from the Linux Kernel.
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| 275 | These headers are required for Glibc to compile.</para>
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| 276 | </listitem>
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| 277 |
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| 278 | <listitem>
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| 279 | <para>Linux Kernel</para>
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| 280 | <para>The Linux operating system.</para>
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| 281 | </listitem>
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| 282 |
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| 283 | <listitem>
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| 284 | <para>M4</para>
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| 285 | <para>This package contains a macro processor. It is required by several
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| 286 | CLFS packages, including Bison.</para>
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| 287 | </listitem>
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| 288 |
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| 289 | <listitem>
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| 290 | <para>Make</para>
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| 291 | <para>This is required for installation of most CLFS packages</para>
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| 292 | </listitem>
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| 293 |
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| 294 | <listitem>
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| 295 | <para>Man-DB</para>
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| 296 | <para>This package contains programs for finding and viewing man pages,
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| 297 | and has superior internationalization capabilities compared to the
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| 298 | <application>Man</application> package.</para>
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| 299 | </listitem>
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| 300 |
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| 301 | <listitem>
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| 302 | <para>Man-Pages</para>
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| 303 | <para>A number of useful manpages, not supplied by other packages</para>
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| 304 | </listitem>
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| 305 |
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| 306 | <listitem>
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| 307 | <para>MPC</para>
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| 308 | <para>This package is required by GCC.</para>
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| 309 | </listitem>
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| 310 |
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| 311 | <listitem>
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| 312 | <para>MPFR</para>
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| 313 | <para>This package is required by GCC.</para>
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| 314 | </listitem>
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| 315 |
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| 316 | <listitem>
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| 317 | <para>Ncurses</para>
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| 318 | <para>Needed by several packages in CLFS, such as Vim, Bash, and Less</para>
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| 319 | </listitem>
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| 320 |
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| 321 | <listitem>
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| 322 | <para>Patch</para>
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| 323 | <para>Used for applying patches in several CLFS packages</para>
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| 324 | </listitem>
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| 325 |
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| 326 | <listitem>
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| 327 | <para>Perl</para>
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| 328 | <para>The Perl package contains the Practical Extraction and Report
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| 329 | Language. It is required by several CLFS packages.</para>
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| 330 | </listitem>
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| 331 |
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| 332 | <listitem>
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| 333 | <para>Pkg-config-lite</para>
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| 334 | <para>Several packages in CLFS, and many others outside of CLFS,
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| 335 | use <command>pkg-config</command> to locate dependencies.</para>
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| 336 | </listitem>
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| 337 |
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| 338 | <listitem>
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| 339 | <para>Procps-ng</para>
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| 340 | <para>Provides a number of small, useful utilities that give information
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| 341 | about the <filename class="directory">/proc</filename> filesystem.</para>
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| 342 | </listitem>
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| 343 |
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| 344 | <listitem>
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| 345 | <para>Psmisc</para>
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| 346 | <para>Provides more utilties that give information about the
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| 347 | <filename class="directory">/proc</filename> filesystem.</para>
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| 348 | </listitem>
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| 349 |
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| 350 | <listitem>
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| 351 | <para>Readline</para>
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| 352 | <para>The Readline library provides a set of functions for use by
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| 353 | applications that allow users to edit command lines as they are typed
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| 354 | in. This is essential for input in programs like <command>bash</command>
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| 355 | to work properly.</para>
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| 356 | </listitem>
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| 357 |
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| 358 | <listitem>
|
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| 359 | <para>Rsyslog</para>
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| 360 | <para>This package provides a system logging daemon.</para>
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| 361 | </listitem>
|
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| 362 |
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| 363 | <listitem>
|
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| 364 | <para>Sed</para>
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| 365 | <para>This package contains a stream editor. It is used in the
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| 366 | installation procedures of most CLFS packages.</para>
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| 367 | </listitem>
|
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| 368 |
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| 369 | <listitem>
|
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| 370 | <para>Shadow</para>
|
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| 371 | <para>This package contains programs that assist in the administration
|
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| 372 | of users and groups, and passwords.</para>
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| 373 | </listitem>
|
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| 374 |
|
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| 375 | <listitem>
|
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| 376 | <para>Sysvinit</para>
|
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| 377 | <para>Sysvinit provides the init daemon for the system.</para>
|
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| 378 | </listitem>
|
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| 379 |
|
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| 380 | <listitem>
|
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| 381 | <para>Tar</para>
|
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| 382 | <para>Required to unpack the tar archives in which all CLFS packages
|
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| 383 | are distributed</para>
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| 384 | </listitem>
|
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| 385 |
|
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| 386 | <listitem>
|
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| 387 | <para>Tcl</para>
|
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| 388 | <para>Needed for the test suites of several packages</para>
|
|---|
| 389 | </listitem>
|
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| 390 |
|
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| 391 | <listitem>
|
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| 392 | <para>Texinfo</para>
|
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| 393 | <para>This package contains programs for viewing, installing and
|
|---|
| 394 | converting info pages. It is used in the installation procedures
|
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| 395 | of many CLFS packages.</para>
|
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| 396 | </listitem>
|
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| 397 |
|
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| 398 | <listitem>
|
|---|
| 399 | <para>Util-linux</para>
|
|---|
| 400 | <para>The Util-linux package contains miscellaneous utility programs.
|
|---|
| 401 | Among them are utilities for handling file systems, consoles,
|
|---|
| 402 | partitions, and messages. It also includes libraries that are required
|
|---|
| 403 | by E2fsprogs.</para>
|
|---|
| 404 | </listitem>
|
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| 405 |
|
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| 406 | <listitem>
|
|---|
| 407 | <para>Vim</para>
|
|---|
| 408 | <para>The Vim package contains a text editor. Users may substitute Nano,
|
|---|
| 409 | Joe, Emacs, or whatever other editor they prefer.</para>
|
|---|
| 410 | </listitem>
|
|---|
| 411 |
|
|---|
| 412 | <listitem>
|
|---|
| 413 | <para>XZ Utils</para>
|
|---|
| 414 | <para>Useful for compressing files to reduce size. Also needed to
|
|---|
| 415 | uncompress tarballs for many CLFS packages</para>
|
|---|
| 416 | </listitem>
|
|---|
| 417 |
|
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| 418 | <listitem>
|
|---|
| 419 | <para>Zlib</para>
|
|---|
| 420 | <para>The Zlib package contains compression and decompression routines
|
|---|
| 421 | used by some programs.</para>
|
|---|
| 422 | </listitem>
|
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| 423 |
|
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| 424 | </itemizedlist>
|
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| 425 |
|
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| 426 | </appendix>
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